CVE-2026-64226 (GCVE-0-2026-64226)

Vulnerability from cvelistv5 – Published: 2026-07-24 15:23 – Updated: 2026-08-05 12:40
VLAI
Title
sched_ext: Avoid UAF in scx_root_enable_workfn() init failure path
Summary
In the Linux kernel, the following vulnerability has been resolved: sched_ext: Avoid UAF in scx_root_enable_workfn() init failure path In scx_root_enable_workfn(), put_task_struct(p) is called before scx_error() dereferences p->comm and p->pid. If the iterator's reference is the last drop, the task is freed synchronously and the deref becomes a UAF. Move put_task_struct() past scx_error().
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: f0e1a0643a59bf1f922fa209cec86a170b784f3f , < cf396941901858b0de426cdcd3974eea6a02c98c (git)
Affected: f0e1a0643a59bf1f922fa209cec86a170b784f3f , < 45c7c4e3db8b700307313c035ea08be829a7f21b (git)
Affected: f0e1a0643a59bf1f922fa209cec86a170b784f3f , < 57e19ba3f58a67eb924022a5a60b67fd08e5cbbd (git)
Affected: f0e1a0643a59bf1f922fa209cec86a170b784f3f , < 9a415cc53711f2238e0f0ca8a6bcc796c003b127 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.92 , ≤ 6.12.* (semver)
Unaffected: 6.18.34 , ≤ 6.18.* (semver)
Unaffected: 7.0.11 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "cve": "CVE-2026-64226",
      "id": "CVE-2026-64226",
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      "status": "interim",
      "title": "SUSE CVE CVE-2026-64226",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64226.json",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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